51.   Collins said the blasts might be related not only to the New Zealand eruption but also to sharply increased seismic activity recently in Indonesia.

52.   Despite the continuing seismic activity, agency officials say that the current spate of tremors seems to be on the wane.

53.   Earthquake detectors on Friday recorded intense seismic activity never seen before inside the volcano, indicating a possible movement of magna.

54.   Earthquake-monitoring authorities have been watching the area carefully because it has been the center of greater-than-usual seismic activity for the last several months.

55.   Egion, a small port on the Gulf of Corinth, is in an area of frequent seismic activity.

56.   Earthquakes and seismic activity are common in this part of the world and particularly in the Hindu Kush mountains.

57.   Egion, a small port on the Gulf, is in an area of frequent seismic activity.

58.   Earthquakes and seismic activity are common in the Hindu Kush mountains.

59.   Experts had predicted the eruption because of increased seismic activity that began earlier this week.

60.   He declined to comment on what was causing the seismic activity or about how long it might last.